week.

They include, in particular, the mandatory country-of-origin labelling, according to a USDA spokesman.

White House chief of staff Rahm Emanuel issued a memo on Tuesday that all rules that had not been published in the Federal Register before President Barack Obama took office would be withdrawn for review.

And all rules published would be reviewed, if they had not taken effect.

The labelling rule was published last week, but it is not scheduled to take effect until March 16.

The agency will proceed with regulations for implementation, but those regulations could change depending on the Obama administration’s decision.

The USDA spokesman also said that Bush administration regulations for the Environmental Quality Incentives Program, the grasslands and wetlands reserve programs, the farm and ranchland protection program, and other conservation programs that were issued in the last days of the administration would be subject to review, too.